diff --git a/JavaScriptCore/jsc.cpp b/JavaScriptCore/jsc.cpp
index 252fb96..e24f81a 100644
--- a/JavaScriptCore/jsc.cpp
+++ b/JavaScriptCore/jsc.cpp
@@ -304,6 +304,10 @@ JSValue JSC_HOST_CALL functionQuit(ExecState* exec, JSObject*, JSValue, const Ar
     // Without this, Visual Studio will complain that this method does not return a value.
     return jsUndefined();
 #endif
+
+#if COMPILER(SUNCC)
+    return jsUndefined();
+#endif
 }
 
 // Use SEH for Release builds only to get rid of the crash report dialog
diff --git a/JavaScriptCore/wtf/FastMalloc.cpp b/JavaScriptCore/wtf/FastMalloc.cpp
index c834212..26f2f1c 100644
--- a/JavaScriptCore/wtf/FastMalloc.cpp
+++ b/JavaScriptCore/wtf/FastMalloc.cpp
@@ -1426,7 +1426,7 @@ void TCMalloc_PageHeap::init()
 void* TCMalloc_PageHeap::runScavengerThread(void* context)
 {
   static_cast<TCMalloc_PageHeap*>(context)->scavengerThread();
-#if COMPILER(MSVC)
+#if COMPILER(MSVC) || COMPILER(SUNCC)
   // Without this, Visual Studio will complain that this method does not return a value.
   return 0;
 #endif